Hi there! I have a Blackview A5 phone (firmware: A5_C1Blackview_Q20160629_184905) with two Italian sim cards: the first one is from H3G and works only under 3G.; the second one is from TIM and can work also in 2G. The Tim sim is that one I normally use to connect my phone to internet network in 2G (I have a data contract with TIM network and a contract for calls with H3G). This is what was happening with my previous device. Now I can't use the A5 with the abovementioned characteristics because the preferred sim for mobile data works in 3G only, and if I want to change "preferred network type" to the card that i only use for phoning it's impossible because it isn't selectable (that option is grey for the sim for phoning and black - and selectable- for data). This is not my main phone so the 2G network is more than enough for surfing net for me. I don't know if I've properly explained my problem but I hope you have a solution for me. Best regards